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发布时间: 2025-06-01 19:02:54北京青年报社官方账号
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  沈阳荨麻疹 怎样治疗   

Tesla CEO Elon Musk has made bold claims about the company's upcoming electric pickup. Now Ford, maker of America's most popular pickup truck, is already pushing back with a demonstration of what its planned electric F-150 could be capable of doing.Ford released video of a prototype electric F-150 towing a line of freight train cars weighing, according to Ford, over 1 million pounds. The truck, driven by F-150 chief engineer Linda Zhang, pulled the train for 1,000 feet.After that was done, Ford added train cars carrying 42 F-150 pickups -- one for every year that the Ford F-series has been the bestselling truck in America -- and Zhang pulled the train again. With the trucks, the train weight rose to 1.25 million pounds, according to Ford.Ford pointed out that this was a "one-time short event demonstration," in which the prototype was "towing far beyond any production truck's published capacity." Ford has not yet announced how much the production version of the truck will be capable of towing over long distances during day-to-day use.Ford did not say what sort of battery power, electric motors or gear ratios the prototype truck was using.In a podcast interview in June, 1198

  沈阳荨麻疹 怎样治疗   

That had to hurt. Security cam footage captured a burglar crashing through the ceiling of a Venutra County, California, restaurant on Oct. 31. The woman is seen hitting her head on metal kitchen equipment. She was slow to get up, but eventually continued with the burglary, along with a male accomplice. The video was released by the county's sheriff's office earlier this week in hopes of finding the pair of burglars. The woman who crashed through the ceiling is described as a white or Hispanic female, approximately 5-feet-6 to 5-feet-8 in height, 110-130 pounds, 18-25 years old, with bleached blonde colored hair and dark colored roots.A male suspect also seen in the video is described as a white male, approximately 5-feet-8 to 6-feet in height, 160-190 pounds, 20-25 years old with short brown or dark colored hair.The sheriff's office said several hundred dollars and numerous bottles of wine were stolen from the business. 946

  沈阳荨麻疹 怎样治疗   

Tesla CEO Elon Musk has made bold claims about the company's upcoming electric pickup. Now Ford, maker of America's most popular pickup truck, is already pushing back with a demonstration of what its planned electric F-150 could be capable of doing.Ford released video of a prototype electric F-150 towing a line of freight train cars weighing, according to Ford, over 1 million pounds. The truck, driven by F-150 chief engineer Linda Zhang, pulled the train for 1,000 feet.After that was done, Ford added train cars carrying 42 F-150 pickups -- one for every year that the Ford F-series has been the bestselling truck in America -- and Zhang pulled the train again. With the trucks, the train weight rose to 1.25 million pounds, according to Ford.Ford pointed out that this was a "one-time short event demonstration," in which the prototype was "towing far beyond any production truck's published capacity." Ford has not yet announced how much the production version of the truck will be capable of towing over long distances during day-to-day use.Ford did not say what sort of battery power, electric motors or gear ratios the prototype truck was using.In a podcast interview in June, 1198

  

The federal emergency alert program was designed decades ago to interrupt your TV show or radio station and warn about impending danger — from severe weather events to acts of war.But people watch TV and listen to radio differently today. If a person is watching Netflix, listening to Spotify or playing a video game, for example, they might miss a critical emergency alert altogether."More and more people are opting out of the traditional television services," said Gregory Touhill, a cybersecurity expert who served at the Department of Homeland security and was the first-ever Federal Chief Information Security Officer. "There's a huge population out there that needs to help us rethink how we do this."Possible vs. practicalAdding federal alerts to those platforms might not entirely be a technical issue, at least on the government's end. The service has already been updated to include smartphones.And FEMA, the agency that manages the system's technology, told CNN Business that there are "no known technical hurdles involved in transmitting alerts" to devices that are connected to the internet. In fact, the agency has a way to do that, according to a FEMA spokesperson.But a new tool would need to be developed to distribute alert information to streaming platforms. FEMA said the "unknown quantity" is figuring out who would develop and install the applications.That's not a simple task, said Touhill, who's now president of the cybersecurity firm Cyxtera Federal Group. He told CNN Business that the required tool would need to be "exquisitely complex." It would need to be thoroughly tested and safeguarded to ensure that only authorized parties have access."Is it possible? Yes. Is it practical? Maybe not," Touhill told CNN Business.Another concern is whether devices connected to the internet are reliable indicators of a person's location. Emergency alerts need to be able to target a specific area so that they only reach people who are at risk.People on the internet can be traced through their IP addresses — unique strings of numbers assigned to each device that are also associated with a specific set of geographic coordinates. That's how companies like Netflix determine which language and content to show its customers.But those locations can be unreliable or easily manipulated, Touhill said.It's also not clear that enough information is there in some cases. A source familiar with Netflix's thinking told CNN Business that the company's ability to pinpoint a customer's exact location may vary depending on that person's internet service provider. That means Netflix might not reliably know a person's location with enough specificity to provide effective emergency alerts.Congress has considered some of these issues. Hawaii Senator Brian Schatz, a Democrat, proposed a bill last year that called for authorities to look into the feasibility of adding streaming services to the federal emergency alert system.The 2956

  

The Dow fell more than 800 points Wednesday after the bond market, for the first time in over a decade, flashed a warning signal that has an eerily accurate track record for predicting recessions.Here's what happened: The 10-year Treasury bond yield fell below 1.6% Wednesday morning, dropping just below the yield of the 2-year Treasury bond. It marked the first time since 2007 that 10-year bond yields fell below 2-year yields.US stocks fell as investors sold stock in companies and moved it into bonds. The Dow was about 2.8% lower. The broader S&P 500 was also down 2.8% and the Nasdaq sank 3.1% Wednesday.CNN Business' Fear and Greed Index signaled investors were fearful. The VIX volatility index spiked 26%.Investors are on edge because the German economy shrank in the second quarter, and the US-China trade war still looms large over markets despite the latest truce. Industrial production in China grew at the weakest rate in 17 years in July.As the global economy sputters, investors are plowing money into long-term US bonds. The 30-year Treasury yield fell to 2.05%, the lowest rate on record.Government bonds — particularly US Treasuries — are classic "safe-haven" assets that investors like to hold in their portfolios when they're nervous about the economy. Stocks, by contrast, are riskier assets that tend to be more volatile during economic slowdowns.Gold, another safe-haven asset, rose 1% Wednesday.Here's what this all means: Normally, long-term bonds pay out more than short-term bonds because investors demand to be paid more to tie up their money for a long time. But that key "yield curve" inverted on Wednesday. That means investors are nervous about the near-term prospects for the US economy. Bonds and yields trade in opposite directions, so yields sink when investors buy bonds.Part of the yield curve has been inverted for several months. In March, the yield on the 3-month Treasury bill rose above the rate on the 10-year Treasury note for the first time since 2007. It inverted again on July 24 and has remained negative. But Wednesday marked the first time in over a decade that the "main" yield curve — the 2-year / 10-year ratio — had inverted.That spooked Wall Street, because an inversion of the 2/10 curve has preceded every recession in modern history. That doesn't mean a recession is imminent, however: The Great Recession started nearly two years after the December 2005 yield-curve inversion.William Foster, Moody's lead US analyst, predicts the US economy will avoid a recession in 2019 and in 2020, despite the yield curve inversion's warning sign. He expects growth to slow in the second half this year into 2020.The US economy remains strong: Unemployment is historically low, consumer spending is booming, and the financial system is healthy."Even though we're discouraged by the yield curve's shape right now, we see few signs of danger ahead," said John Lynch, LPL Research chief investment strategist, in a blog post.Stocks have grown volatile lately, with the Dow plunging and rising more than 350 points in each session this week. But the yield curve inversion doesn't mean the stock market is about to collapse. The S&P 500 has rallied 22% on average between the first time a yield curve inverts and the start of a recession, Lynch noted.Following the last yield curve inversion in 2005, stocks rose for 12 straight months. 3400

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